1*5a9b8e2cSDmitrii Dolgov // SPDX-License-Identifier: GPL-2.0
2*5a9b8e2cSDmitrii Dolgov /* Copyright (c) 2022 Red Hat, Inc. */
3*5a9b8e2cSDmitrii Dolgov #include "bpf_iter.h"
4*5a9b8e2cSDmitrii Dolgov #include <bpf/bpf_helpers.h>
5*5a9b8e2cSDmitrii Dolgov 
6*5a9b8e2cSDmitrii Dolgov char _license[] SEC("license") = "GPL";
7*5a9b8e2cSDmitrii Dolgov 
8*5a9b8e2cSDmitrii Dolgov SEC("iter/bpf_link")
dump_bpf_link(struct bpf_iter__bpf_link * ctx)9*5a9b8e2cSDmitrii Dolgov int dump_bpf_link(struct bpf_iter__bpf_link *ctx)
10*5a9b8e2cSDmitrii Dolgov {
11*5a9b8e2cSDmitrii Dolgov 	struct seq_file *seq = ctx->meta->seq;
12*5a9b8e2cSDmitrii Dolgov 	struct bpf_link *link = ctx->link;
13*5a9b8e2cSDmitrii Dolgov 	int link_id;
14*5a9b8e2cSDmitrii Dolgov 
15*5a9b8e2cSDmitrii Dolgov 	if (!link)
16*5a9b8e2cSDmitrii Dolgov 		return 0;
17*5a9b8e2cSDmitrii Dolgov 
18*5a9b8e2cSDmitrii Dolgov 	link_id = link->id;
19*5a9b8e2cSDmitrii Dolgov 	bpf_seq_write(seq, &link_id, sizeof(link_id));
20*5a9b8e2cSDmitrii Dolgov 	return 0;
21*5a9b8e2cSDmitrii Dolgov }
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